Eclipse executable launcher was unable to locate...

I've had a frustrating time with Eclipse 3.6. I was getting freezes and crashes and found I needed to mod my eclipse.ini file and add eclipse_1308 into a folder in plug-ins.

Since I've done that, I can no longer run Eclipse - I receive "The Eclipse executable launcher was unable to locate its companion shared library". This is (usually) caused by javaw.exe not being in the right place - but the path setting has the correct path and I've also added a -vm entry pointing to the correct path. Should I just wait for 3.7 to come out - or any other suggestions??